1971 Jaguar Etype V12
Discussion
Good morning to all. My name is Tim, and I am with Gunbarrel Import Motors in Niwot, Colorado, USA.
This forum was of tremendous help getting a TVR Chimaera through emissions testing, and this is a bit of a hail mary, as I inherited this job from a technician who has since resigned.
I am working on a 1971 Jaguar Etype V12. I cannot get the engine to start. Initially, I found little primary ignition voltage, and no secondary ignition voltage. After replacement of the pickup in the base of the distributor, (this has an "upgraded" two wire pickup in the base of the distributor, and the corresponding "upgraded" ballast resistor and ignition amplifier, sold together in a kit by S.N.G. Barratt) my primary voltage was approximately 50 volts, and my secondary voltage approximately 6 KV. Still, no starting the engine... I have verified that the mechanical timing is correct, with the ignition rotor pointed at about the #1 spot on the distributor cap with TDC on #1 cylinder verified with the pointer on the crankshaft damper, and a leak down gauge on #1 cylinder.
I don't suppose anyone knows what proper ignition voltage for both primary and secondary should be during cranking? I know that, in general, my measurements (with a Snap On Counselor II) seem low compared to a normal running engine.
Do you believe that I should continue to treat this as an ignition voltage issue, or move on to trying to increase compression (measured approximately 110- 120 psi on 1 and 6, engine stone cold. Maybe move on to ignition timing, even though it appears to be in the ballpark?
Although I am not really familiar with the four Stromberg carbs, I can smell fuel after cranking, and a small amount of carb cleaner doesn't seem to help with starting. (at all)
Any suggestions are appreciated, and thank you.
This forum was of tremendous help getting a TVR Chimaera through emissions testing, and this is a bit of a hail mary, as I inherited this job from a technician who has since resigned.
I am working on a 1971 Jaguar Etype V12. I cannot get the engine to start. Initially, I found little primary ignition voltage, and no secondary ignition voltage. After replacement of the pickup in the base of the distributor, (this has an "upgraded" two wire pickup in the base of the distributor, and the corresponding "upgraded" ballast resistor and ignition amplifier, sold together in a kit by S.N.G. Barratt) my primary voltage was approximately 50 volts, and my secondary voltage approximately 6 KV. Still, no starting the engine... I have verified that the mechanical timing is correct, with the ignition rotor pointed at about the #1 spot on the distributor cap with TDC on #1 cylinder verified with the pointer on the crankshaft damper, and a leak down gauge on #1 cylinder.
I don't suppose anyone knows what proper ignition voltage for both primary and secondary should be during cranking? I know that, in general, my measurements (with a Snap On Counselor II) seem low compared to a normal running engine.
Do you believe that I should continue to treat this as an ignition voltage issue, or move on to trying to increase compression (measured approximately 110- 120 psi on 1 and 6, engine stone cold. Maybe move on to ignition timing, even though it appears to be in the ballpark?
Although I am not really familiar with the four Stromberg carbs, I can smell fuel after cranking, and a small amount of carb cleaner doesn't seem to help with starting. (at all)
Any suggestions are appreciated, and thank you.
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